How to use king arms hop up in ICS m4?
 

Hey guys, my ICS m4 hop up system is broken causing massive air seal problems and my gun to shoot about 15 ft. at 100-200 fps.

I have been through 2 ICS hop up units now and am tired of them. I know there is a way to modify a king arms metal hop up unit to fit the ICS models.

Does anyone have step by step advice on how to do this for me? Any help would be appreciated.

Thanks, Marc

maybe this will give you an idea: http://www.northtexasairsoft.org/for...hp?f=75&t=4229
and http://www.northtexasairsoft.org/for...hp?f=21&t=3141

Thanks alot! Do you know if other metal hop up chambers are different than the systema? cause that unit may be out of my price range..

Pretty much all similar in shape. On top of my head, only the Madbull would be different since the dial is located differently.

should the hop up on the stock ics be able to move forward and backward, I just recently installed a steel outter barrel and now my hop up unit+barrel assembly is pretty tight in there as opposed to being looser and more easily removable.

I am thinking about doing this mod but I need to know if hop ups should be doin' that in general.

Do you think that would really affect the fit, cause im considering buying one.

ASC Thread "ICS Bible - Problems and Fixes" stickied in the reviews section

http://www.airsoftcanada.com/showthr...ight=ICS+bible

The reference to modding a Systema Hopup unit refers to filing/rounding the front of the feed tube so that it fit the body. There's pics somewhere...I've saw them about a half year ago. But essentially you test fit it and remove the metal from the hopup unit that interferes with the body.

I did one a little while back...it works fine and not hard to do.

Or....contact Mach1 and ask Shinobii for a stock spare replacement unit.

I'd be tempted to try with the Madbull one...since it looks very similar (the dial on the ICS one is pretty big...so there might not be clearance issues with the Madbull one...you'd probably still have to mod the front of the feed tube though).

Nothing ventured, nothing gained (but often money saved :))

I'll see if I can't dig up the pics

Tys

*edit*
Not the same old pics...but similar pics are in the texas airsoft page
http://img362.imageshack.us/img362/3356/icshoplx4.jpg
http://img100.imageshack.us/img100/7378/49482670mr4.jpg

I can't speak for an ICS, but in my JG, the big Dial changed nothing. You need to mod the "wings" on both sides of the hopup, because it's too tight otherwize and won't spring back. I also stretched the spring on top of the hopup, and it helped.

I can't see the madbull one not working.

just to add, the big dial clearance in a metal CA body was a non issue. actually tons of space. the tabs (wings) on the side fit perfectly. I even have the wires for the tracer strip wrapped above and around the back of the unit before passing it through the hole in the lower receiver.

Maybe you should consider trouble shooting the issue with your gun instead of your hop-up.

ICS hop-up units are far supperior in efficiency and strengh than any metal hop-up units.

If you have a bad air seal, maybe your nozzle is crooked or notched?

im considering gettin a new nozzle, deep fire nozzles compatible with ics? the nozzle that comes with the ics has some imperfections.

Get Modify airseal nozzle. It`s compatible. That`s what I`m using when still I have my ICS M4A1. Seriously, make yourself easy, get the ICS hop up unit. It would save you a lots of trouble. I have trouble fit those systema hop up in ICS body, I manage to fit it in but airseal is a big issue.

DONT SWAP OUT ICS HOPUP.. Buy a NEW one of mach1.. trust me.. modifying and other shit isnt worth your time and can be a pain and it may not work..

ICS hopup is made for the ICS and should be the only one used.. If your thinking its the nozzle shave the raised edge on the middle of the nozzle to a sloped angle i.e from | to / well add more of an angle to it.. Hope its understandable..

That raised edge can get caught on the opening of the hopup unit and this does happen with other brands as well. It just lets the nozzle slide in better and it wont get hung up.. still gives airseal as your not changing the whole diameter of the raised part..

I know ICS 100% in and out.. Trust me.

thank i moden one for my ics m4 work perfect and now it metal wont brake again and that good news for me.